org.wicketstuff.jquery.resize.ResizeBehaviour Maven / Gradle / Ivy

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package org.wicketstuff.jquery.resize;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.attributes.AjaxRequestAttributes;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.JavaScriptHeaderItem;
import org.apache.wicket.request.Request;
import org.apache.wicket.request.cycle.RequestCycle;
import org.wicketstuff.jquery.FunctionString;
import org.wicketstuff.jquery.JQueryBehavior;

/**
 * 
 * @author Edvin Syse 
 * 
 */
public class ResizeBehaviour extends JQueryBehavior
{
	private static final long serialVersionUID = 1L;
	private ResizeOptions options;

	public ResizeBehaviour()
	{
		this(new ResizeOptions());
	}

	public ResizeBehaviour(ResizeOptions options)
	{
		super();
		this.options = options != null ? options : new ResizeOptions();
	}

	@Override
	protected CharSequence getOnReadyScript()
	{
		StringBuilder onReady = new StringBuilder("$('#" + getComponent().getMarkupId() +
			"').resizable(");

		// Add callback method to options
		options.set("stop", new FunctionString("function() {\n " + getCallbackScript() + "}\n"));

		onReady.append(options.toString(false));
		onReady.append(");");

		return onReady;
	}

	@Override
	protected void updateAjaxAttributes(AjaxRequestAttributes attributes)
	{
		super.updateAjaxAttributes(attributes);

		String markupId = getComponent().getMarkupId();
		CharSequence heightAndWidth =
				String.format("return { height: $('#%s').height(), width: $('#%s').width() }",
					markupId, markupId);
		attributes.getDynamicExtraParameters().add(heightAndWidth);
	}

	@Override
	public void renderHead(Component component, IHeaderResponse response)
	{
		super.renderHead(component, response);
		response.render(JavaScriptHeaderItem.forReference(JQueryBehavior.JQUERY_UI_JS));
	}

	@Override
	protected void respond(AjaxRequestTarget target)
	{
		Request req = RequestCycle.get().getRequest();
		onResizeStop(target, req.getQueryParameters().getParameterValue("height").toInt(),
			req.getQueryParameters().getParameterValue("width").toInt());
	}

	public void onResizeStop(AjaxRequestTarget target, int height, int width)
	{
	}
}